112 Weddings

Monday at 9 p.m. on HBO

Photo: HBO

What happens after couples say “I do”? After two decades of shooting nuptials, filmmaker/wedding videographer Doug Block tracks down some of his favorite couples to find out what’s become of their marriages in this documentary film that juxtaposes wedding-day flashbacks with present-day interviews.

Macy’s Fourth of July Fireworks Spectacular

Friday at 8 p.m. on NBC

Nick Cannon (“America’s Got Talent”) presides over the 38th annual fireworks show, which returns to the East River with the Brooklyn Bridge as a backdrop. The live broadcast features performances by Ariana Grande, Miranda Lambert and Lionel Richie and a 25-minute pyrotechnics display.

Nathan for You

Tuesday at 10:30 p.m. on Comedy Central

Prankster Nathan Fielder returns for Season 2 of his docu-comedy-reality show, where he acts as a business advisor who implements strategies that no traditional consultant would dare attempt — like creating a coffee shop called Dumb Starbucks or staging a video where a pig saves a goat.